Maven配置--问题

 

一、

解决-Dmaven.multiModuleProjectDirectory system property is not set. Check $M2_HOME environment variable and mvn script match.

1.添加M2_HOME的环境变量

　　2.Preference->Java->Installed JREs->Edit 选择一个jdk,

　　添加  -Dmaven.multiModuleProjectDirectory=$M2_HOME

-Dmaven.multiModuleProjectDirectory=$M2_HOME

 

二、ERROR: JAVA_HOME is set to an invalid directory

    发现1:在JAVA_HOME的配置中多啦一个分号, 
    发现1:在JAVA_HOME中配置多啦\lib

 

 三、No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK? 

 maven编译项目时出错，提示信息如下：

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:testCompile (default-testCompile) on project springside-core: Compilation failure

[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:

[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException

 解决方案：

1. 下载java jdk，并安装java jdk。下载地址：http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html

2. 在eclipse的菜单中，进入 Window > Preferences > Java > Installed JREs > Execution Environments，选择JavaSE-1.6, 在右侧选择jdk.

3. 然后在maven菜单中使用 “update project ...”.

 四、解决maven打包编译出现File encoding has not been set问题

 [WARNING] File encoding has not been set, using platform encoding GBK, i.e. build is platform dependent!

找了半天，原来只要在pom.xml文件中增加一个配置项即可

 

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

 

 

Maven之pom.xml配置文件详解 http://blog.csdn.net/moshenglv/article/details/52027176

史上最全的Maven Pom文件标签详解

 http://blog.csdn.net/chen3749102/article/details/52327800